53777765963 has 4 divisors (see below), whose sum is σ = 53786851368. Its totient is φ = 53768680560.

The previous prime is 53777765957. The next prime is 53777766061. The reversal of 53777765963 is 36956777735.

53777765963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53777765963 - 2¹² = 53777761867 is a prime.

It is a super-2 number, since 2×53777765963² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53777765963.

It is not an unprimeable number, because it can be changed into a prime (53777765563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4533818 + ... + 4545663.

It is an arithmetic number, because the mean of its divisors is an integer number (13446712842).

Almost surely, 2^53777765963 is an apocalyptic number.

53777765963 is a deficient number, since it is larger than the sum of its proper divisors (9085405).

53777765963 is an equidigital number, since it uses as much as digits as its factorization.

53777765963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9085404.

The product of its digits is 175032900, while the sum is 65.

The spelling of 53777765963 in words is "fifty-three billion, seven hundred seventy-seven million, seven hundred sixty-five thousand, nine hundred sixty-three".